15:16:09 INFO]: blijgozertje issued server command: /f invite ItsBenson
> [15:16:09 ERROR]: null
org.bukkit.command.CommandException: Unhandled exception executing command 'f' in plugin Factions v1.6.9.5-V0.0.1-b${build.number}
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[server.jar:git-TacoSpigot-bf023c7d]
at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:143) ~[server.jar:git-TacoSpigot-bf023c7d]
at org.bukkit.craftbukkit.v1_8_R3.CraftServer.dispatchCommand(CraftServer.java:667) ~[server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.PlayerConnection.handleCommand(PlayerConnection.java:1178) [server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:991) [server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:45) [server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.PacketPlayInChat.a(PacketPlayInChat.java:1) [server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(SourceFile:13) [server.jar:git-TacoSpigot-bf023c7d]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_212]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_212]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SourceFile:44) [server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:785) [server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:427) [server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:724) [server.jar:git-TacoSpigot-bf023c7d]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:627) [server.jar:git-TacoSpigot-bf023c7d]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_212]
Caused by: java.lang.ArrayIndexOutOfBoundsException: 0
at moss.factions.shade.com.google.common.collect.RegularImmutableList.get(RegularImmutableList.java:60) ~[Factions.jar:?]
at java.util.Collections$UnmodifiableList.get(Collections.java:1309) ~[?:1.8.0_212]
at com.massivecraft.factions.cmd.CmdInvite.perform(CmdInvite.java:57) ~[Factions.jar:?]
at com.massivecraft.factions.cmd.FCommand.execute(FCommand.java:77) ~[Factions.jar:?]
at com.massivecraft.factions.cmd.FCommand.execute(FCommand.java:63) ~[Factions.jar:?]
at com.massivecraft.factions.cmd.FCmdRoot.onCommand(FCmdRoot.java:266) ~[Factions.jar:?]
at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[server.jar:git-TacoSpigot-bf023c7d]
... 15 more